TW201701636A - Method to obtain the correct connection position of network equipment by universal protocol SNMP to automatically determine the connection port of switchboard to filter out the ineffective correspondence relationship for obtaining the correct distribution of connection positions of all pieces of network equipment - Google Patents

Abstract

The present invention provides a method to obtain the correct connection position of network equipment by the universal protocol Simple Network Management Protocol (SNMP), which mainly comprises: (a) to gather the equipment Media Access Control (MAC) of all switchboards in Intranet by the universal protocol SNMP, and establish the equipment MAC table; (b) querying the forwarding table of each switchboard, and converting the forwarding table into the table using a connection port as the index; (c) comparing and analyzing the data of each connection port, so as to match MAC with the connection port one by one; (d) updating the records in the saved files, until all switchboards have completed the queries. Accordingly, this invention can obtain the connection port of switchboard corresponding to the network equipment effectively through the universal protocol SNMP, and automatically determine the connection port of switchboard to filter out the ineffective correspondence relationship, thereby obtaining the correct distribution of connection positions of all pieces of network equipment in the network.

Description

Method for obtaining a correct connection position of a network device by using a general protocol SNMP

The invention relates to a method for obtaining a correct connection location of a network device by using a general protocol SNMP, in particular, obtaining a switch connection corresponding to a network device by using a general protocol SNMP, and automatically determining a switch connection to filter an invalid correspondence, and Get the correct way to connect your network device.

With the rapid development of science and technology, the scale of the network has grown and expanded, and it has become an indispensable part of modern life. Is the operation of the network safe, stable, and highly efficient directly affecting whether the core business of the enterprise can be smoothly expanded? When a problem occurs in the local area network, if the physical location of the network device with the wrong network is found as soon as possible, the problem can be effectively solved in the shortest time, and the network can be quickly restored to normal operation. Therefore, the administrator must It is extremely important to be able to fully understand all the network devices in the enterprise. This is extremely important in enterprise-level IP management.

However, the relevant functional familiar products with IP management currently available on the market, and the related network location information of the managed network devices are mostly based on the list plus the network topology map (such as Figure 12). Presented. That is, the general internal network IP management basic data is often presented in an IP-MAC list to represent the communication location and computer equipment. Missing in the contents of its list The connection between the devices is lacking, and it is impossible to view the physical location of the computer device for reference information by the list or its icon.

Therefore, in practice, after the IP-MAC list, plus a connected switch connection record as a secondary, it can be used as a basic reference information for the network device entity location. However, this form still needs to be manually updated at any time, which is not only time-consuming and laborious, but also because the connection relationship of devices in the network often changes continuously, the form update record can never keep up with the speed of change of the device, and the correct result has not been obtained, resulting in capital Security difficulties.

To solve this problem, more advanced and well-known brand switch devices provide proprietary functions that can be used directly to view information about each port or to connect to a computer device. However, this is a built-in function unique to a particular brand of equipment and cannot be used in common with general label equipment. If you really want to implement it according to this method, the premise is that the enterprise must use the same high unit price of the same specific brand network equipment from top to bottom. The management can correctly understand all the networks in the network. device. However, this is obviously different from the general use of network equipment that collects different unit price and multi-brand cards. Therefore, the premise requirements are extremely unreasonable, and it is not in line with the application practice of today's universal network environment.

In view of this, the inventors have actively invested in research and ideas to find the best solution. First, when the general terminal device is connected to the switch in the network, a forwarding table can be automatically established in the switch (Switch) for smooth transfer using the network packet. When the transfer table is used to receive the packet, the next port to be sent can be queried according to the media access control MAC (Media Access Control). But only by transfer Can't be sure if the MAC in the table is actually connected to the port in the table? In this case, the connected device of the port cannot be effectively identified. Is it a desktop computer or a notebook computer (PC, NB) belonging to a general terminal device? Or a switch for a network device?

However, if you go deeper and discuss it further, if it is a switch belonging to a network device, the MAC address of the device should be in the transfer table of the port. Therefore, if the MAC address of another device in the forwarding table includes the MAC address of another device, the connection port is not directly connected to the terminal device (link-port, not access-port), and the query should be omitted. All MAC information records are connected through this connection, because these MACs will definitely appear again in other switch forwarding tables in the network, and will eventually be judged as accepting data in only one switch.

Based on this, the main purpose of the present invention is to provide a method for obtaining a correct connection location of a network device by using a general protocol SNMP, which mainly includes: a. collecting all MACs of the switch devices in the network by using a general protocol SNMP, and establishing a device MAC table; Query the transfer table of each switch, and convert the transfer table to the link ;; c. Compare each link 埠 data, match the MAC and the link one by one, and; d. Update the record archive until all The switch is all queried, thereby effectively obtaining the switch connection corresponding to the network device through the Simple Network Management Protocol (SNMP), which is a simple network management protocol, and automatically determining the switch connection to filter the invalid correspondence. , quickly get all within the network The correct distribution connection location of the network device.

100‧‧‧Query construction process

200‧‧‧Update construction process

300‧‧‧Transactional construction process

400‧‧‧Network distribution environment plan

410‧‧‧ branches

450‧‧‧Global geographical map

500‧‧‧Regional Network

901, 902, 903, 904‧‧‧ box

51‧‧‧First Management Form

52‧‧‧Second Management Form

53‧‧‧First Management Form

54‧‧‧Second Management Form

55‧‧‧First Management Form

56‧‧‧Second Management Form

S1‧‧‧ first switch

S2‧‧‧second switch

S3‧‧‧ third switch

S4‧‧‧fourth switch

C1‧‧‧First terminal equipment

C2‧‧‧second terminal equipment

C3‧‧‧Terminal terminal equipment

C4‧‧‧4th terminal equipment

P1, p2, p3‧‧‧ connection port

Figure 1 is a block diagram of the present invention.

Figure 2 is a flow chart of the query construction table of the present invention.

Fig. 3 is a view showing an application of the present invention.

Figure 4-1 is the first management chart of the present invention.

Figure 4-2 is a second management chart of the present invention.

Figure 5 is a flow chart of updating the transaction query table according to the present invention.

Figure 6 is a diagram showing an application example of a new device of the present invention.

Figure 7-1 shows the first management chart of the new device of the present invention.

Figure 7-2 is a second management chart of the newly added device of the present invention.

Figure 8 is a diagram showing an application example of the device change of the present invention.

Figure 9-1 is the first management chart of the device change of the present invention.

Figure 9-2 is a second management chart of the device change of the present invention.

Figure 10 is a schematic diagram of the integration of the invention and the network distribution environment plan information.

Figure 11 is a schematic diagram of the integration of the invention with global geographical representation information.

Figure 12 is a topographical diagram of a conventional network terminal device.

The embodiments of the present invention are disclosed in detail below by specific specific examples, and are familiar with Those skilled in the art will readily appreciate the advantages and benefits of the present invention from the teachings herein. Please refer to FIG. 1 for a block diagram of the present invention. The method for obtaining the correct connection location of the network device by using the universal protocol SNMP includes: box 901, a. collecting all the MAC addresses of the switch devices in the network by using the general protocol SNMP, and establishing a device MAC table; block 902, b. query each device The transfer table of the switch, and the transfer table is indexed by the port; the frame 903, c. compares each link data, pairs the MAC with the port, and blocks 904, d. updates the record archive, The query is completed, and the query is completed. As shown in FIG. 2, the preferred embodiment of the present invention may further include a query construction process 100, which mainly includes: S01 Step 1. Collect all switches in the network by using the universal protocol SNMP. Device MAC, establish device MAC table; S02 Step 2. Query the transfer table of each switch; S03 Step 3. Convert the transfer table to the link 埠 as index; S04 Step 4. Analyze each link 逐 data one by one, judge Does any MAC appear in the device MAC table? If yes, go to step 5; if no, go to step 6; S05 step 5. Skip the information and return to step 2; S06 step 6. Update the MAC and port 逐 to the result one by one, and; 7. Determine if all switches have been queried? If no, return to step 2; if yes, the action ends.

In this way, the switch port corresponding to the network device can be effectively obtained through the universal protocol SNMP, and the switch connection is automatically determined to filter the invalid correspondence, and the correct distribution connection position of all network devices in the network is quickly obtained.

Please refer to Figure 3, for example, the internal device 500 distribution map of an enterprise, where the connection port p1 (S1) of the first switch S1 and the connection port p1 (S2) of the second switch S2 are connected. Connected, the connection port p2 (S1) of the first switch S1 is connected to the connection port p1 (S3) of the third switch S3, and the connection port p2 (S3) of the third switch S3 is provided with a third terminal device C3. And having a MAC3 for identification, and the connection port p2 (S2) of the second switch S2 is connected to a first terminal device C1 and has a MAC1 for identification; and the connection port p3 of the second switch S2 (S2) is connected to the connection port p1 (S4) of the fourth switch S4, and the connection port p2 (S4) of the fourth switch S4 is provided with a second terminal device C2 and has a MAC 2 for identification.

By means of the effective methods and steps provided by the present invention (see FIGS. 1~3), the internal devices of the regional network 500 can be quickly and sequentially queried, and the comparison is established: as shown in FIG. 4-1. The first management table 51 is configured to connect the MAC1 representing the first terminal device C1 to the connection port p2 of the second switch S2, and the MAC2 representing the second terminal device C2 to the connection port p2 of the fourth switch S4. And the MAC3 representing the third terminal device C3 is connected to the connection port p2 of the third switch S3, and the second management table 52 as shown in FIG. 4-2 to know the first to fourth switches S1 to S4. Whether each connection port p1, p2 or p3... is only a connected path (T) or a connected device (F); an interactive screening of two accurate comparisons of the first management table 51 and the second management table 52 As a result, the real connection distribution bits of each network device in the area network 500 can be obtained. It is easier to save time and trouble, and the actual connection data of each network device is more detailed and accurate, and it can provide complete and clear control of the security management.

As shown in the figures 5, 6, 7-1, and 7-2, the preferred embodiment of the present invention may further include an update table construction process 200, which mainly includes: S08 Step 8. Determine whether to update the data. If yes, go to step 2; if no, the action ends. Routine maintenance of the area network 500, or when there are new devices, it is convenient for the administrator to update the latest distribution of devices in the network through the update table construction process 200, for example, as shown in Fig. 6, when the area is When the fourth terminal device C4 is added to the connection port p3 (S4) of the fourth switch S4, the network 500 has a MAC4 for identification. The effective method provided by the present invention and the step 8 of S08 can be quickly performed. Query analysis compares the internal devices of the local area network 500, and establishes an updated first management table 53 (such as Figure 7-1) and a second management table 54 (such as Figure 7-2), so that the manager The real connection location of each device in the local area network 500 can be clearly grasped at any time.

As shown in FIG. 5, 8, 9-1, and 9-2, the preferred embodiment of the present invention may further include a transaction configuration process 300, which mainly includes: S09 step 9. determining whether the switch in the network has a change. If yes, go to step 1; if no, the action ends. In addition to the increase or decrease of equipment in the local area network 500, other departments may face the expansion or downsizing of the department to cause the equipment to move. The manager can use the transaction table 300 to facilitate the update of the latest distribution after the device changes in the network. For example: 8 is shown, when the third terminal device C3 and the fourth switch S4 in the local area network 500 are connected with the second terminal device C2 and the fourth terminal device C4 connected to the bottom terminal device At the same time, the same effective method provided by the present invention and step S09 of S09 can be used to quickly perform the query analysis on the internal device of the regional network 500, and the first management table 55 after the transaction is established (such as Figure 9-1). And the second management table 56 (as shown in Figure 9-2), so that the manager can clearly grasp the real connection distribution position of each device in the regional network 500 at any time.

For example, in the preferred embodiment of the present invention, the data of the first to fourth terminal devices C1 to C4 in the area network 500 may further include: an IP address and a MAC address of each device. And the host name data, corresponding to a single network location; and then integrated with a network distribution environment plan 400 information, and the associated network terminal devices C1~C4 are correspondingly displayed as physical location display. Or, as shown in FIG. 11, the integration of the cross-regional enterprise branch 410 and the global geographic representation 450 information (such as Google Map) information integration is further expanded.

In this way, it is very easy to make the network fault diagnosis and elimination possible by facilitating the security management and documentation to update and maintain the use. Directly from the global geographical map 450 and the network distributed environment plan 400 in comparison with the displayed physical location of the entity, it is easy to find the network plane device C1~C4 where the problem occurs, and the relative position of the building is directly displayed. For effective troubleshooting, the network can be quickly and smoothly returned to normal.

In summary, the novel method of the present invention has significant progress compared with the conventional ones, and also has industrial availability, fully conforms to the patent requirements, and proposes an invention patent application. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; therefore, the simple equivalent changes and modifications made by the scope of the patent application and the content of the invention are All should remain within the scope of the invention patent.

S1‧‧‧ first switch

S2‧‧‧second switch

S3‧‧‧ third switch

S4‧‧‧fourth switch

C1‧‧‧First terminal equipment

C2‧‧‧second terminal equipment

C3‧‧‧Terminal terminal equipment

P1, p2, p3‧‧‧ connection port

Claims (6)

A method for obtaining a correct connection location of a network device by using a general protocol SNMP, comprising: a. collecting all MACs of the switch devices in the network by using a general protocol SNMP, establishing a MAC table of the device; b. querying a transfer table of each switch, and The transfer table is converted to the link 埠 as an index; c. the comparison analyzes each link 埠 data, pairs the MAC and the link 埠 one by one, and; d. updates the record archive until all the switches have been queried; thereby, effective Through the universal protocol SNMP, the switch interface corresponding to the network device is obtained, and the switch connection is automatically determined to filter the invalid correspondence, and the correct distribution connection position of all network devices in the network is quickly obtained. The method for obtaining the correct connection location of the network device by using the general agreement SNMP according to the first aspect of the patent application is further provided with a query construction process, which mainly includes: Step 1. Collecting the network by using the universal protocol SNMP All switch device MACs, establish the device MAC table; Step 2. Query the transfer table of each switch; Step 3. Convert the transfer table to the link 埠 as an index; Step 4. Compare each link 逐 data one by one to determine whether Any MAC appears in the device MAC table; if yes, perform the following step 5; if not, perform the following step 6; Step 5. Skip the information and return to step 2; Step 6. Connect the MAC and the connection one by one埠 Pairing updates to the results, and; Step 7. Determine if all switches have completed the query; if not, return to step 2; if yes, the action ends. The method for obtaining the correct connection location of the network device by the general agreement SNMP according to the second item of the patent application scope is further provided with an update construction process, that is, adding a step 8. determining whether to update the data; if yes, Perform step 2 above; if no, the action ends. The method for obtaining the correct connection location of the network device by the general agreement SNMP according to the second item of the patent application scope is further provided with a transaction establishment flow, that is, adding a step 9. determining whether the switch in the network has a change; If yes, perform the above step 1; if not, the action ends. The method for obtaining the correct connection location of the network device by using the SNMP protocol in the general agreement SNMP as described in claim 1, 2, 3 or 4, the preferred embodiment further obtaining the data of each terminal device in the network, including: the terminal The device's IP address, MAC address, and host name data correspond to a single network location; and then integrate with a network distribution environment floor plan information, and the managed network terminal device is displayed as an entity geographic location display. The method for obtaining the correct connection location of the network device by using the general agreement SNMP according to the fifth item of the patent application scope, wherein the network terminal device corresponds to the physical geographic location, and is further integrated with the global geographical graphic information.